The Pentlands are a very conservative, old money family in a small town near Boston, who claim ancestry going back to the Massachusetts Bay Colony. In the fall of an unspecified year in the 1920’s, their world is invaded by several “outsiders,” including Sybil, the patriarch’s granddaughter back from a Paris education, Sabine, a prodigal niece who has returned after being gone for twenty years, together with her daughter Thérèse,...